I scored an 869 on the Security plus this weekend.
My prep materials were Darril's book and his blog. I read his book over a 3 week period and then spend a week doing the practice exams and going back and reviewing. I work full time and I have a family so I studied nights after the kids were in bed and on the weekends when I had an extra few hours.
Darril's blog was a great resource about the performance based questions so those were not a surprise to me:
Security+ Performance Based Questions - Get Certified Get Ahead | Get Certified Get Ahead
My advice for anyone studying for this exam is as follows:
Set a date the day you start to study. Pick a date for your exam right away, be it 2 weeks later, 4 weeks later, 8 weeks later ... whatever. Just set a date and work toward it. This is a very do-able exam.
Work your way through the material you are using to study and then try to have that done a week or two before your exam date. Then use the last week or two to do a few practice exams, find out what areas you are weak in and go back and read just those sections again.
